Use correct types namespace when building namedtuple core schemas

[Viicos]

Change Summary

Fixes #10336

Regression introduced in #10063

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Related issue number

Checklist

• The pull request title is a good summary of the changes - it will be used in the changelog
• Unit tests for the changes exist
• Tests pass on CI
• Documentation reflects the changes where applicable
• My PR is ready to review, please add a comment including the phrase "please review" to assign reviewers

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[codspeed]

CodSpeed Performance Report

Merging #10337 will not alter performance

_{Comparing 10336 (61ef3dd) with main (97d357f)}

Summary

✅ 50 untouched benchmarks

[sydney-runkle]

Great find @Viicos. Do we need to make any changed to typed dicts (I see we also changed that schema gen func in the original PR)

Feel free to remove that benchmark for now (let's comment it out), it's too flaky to be valuable at this point.

[github-actions]

Coverage report

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File	Statements	Missing	Coverage	Coverage (new stmts)	Lines missing
pydantic/_internal
_generate_schema.py
Project Total

This report was generated by python-coverage-comment-action

[Viicos]

Do we need to make any changed to typed dicts

The types namespace stack is updated for typeddicts but wasn't for namedtuples, so this only affected the latter.

[Viicos]

Feel free to remove that benchmark for now (let's comment it out), it's too flaky to be valuable at this point.

I have a pending PR that I'll finish this afternoon to tackle this

[sydney-runkle]

Sounds good. Also, could you please add a test before we merge?

[sydney-runkle]

Great work!